--[[

  Copyright 2017 Stefano Mazzucco <stefano AT curso DOT re>

  This program is free software: you can redistribute it and/or modify it under
  the terms of the GNU General Public License as published by the Free Software
  Foundation, either version 3 of the License, or (at your option) any later
  version.

  This program is distributed in the hope that it will be useful, but WITHOUT
  ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
  FOR A PARTICULAR PURPOSE.  See the GNU General Public License for more
  details.

  You should have received a copy of the GNU General Public License along with
  this program.  If not, see <https://www.gnu.org/licenses/gpl-3.0.html>.

]]

local helpers = {}

function helpers.dir(obj, indent)
  indent = indent or ""
  if type(obj) == "table" then
    local out = "\n"
    for k, v in pairs(obj) do
      out = out ..
        indent ..
        helpers.dir(k) ..
        " :: " ..
        helpers.dir(v, indent .. "  ") ..
        "\n"
    end
    return out
  else
    return indent .. tostring(obj)
  end
end

function helpers.concat_non_nil(values, sep)
  sep = sep or " "

  local text = ""
  for _, v in pairs(values) do
      text = text .. v .. sep
  end
  return text:sub(1, -2)
end


function helpers.reload(m)
  package.loaded[m] = nil
  return require(m)
end

return helpers
